Thanks for your suggestion . It works fine with coastline add-on loading first in the Scenery Library
and then the island (CVX) .
Only having shore North and South within the QMID my added Hydropoly ended up with 545 points in
order to have a decent presentation , but it looks good .
What l have noticed is that if your island is near a shore , it takes the characteristics of the nearby shore
and no landglass is necessary except of course if you wish to enhance it with whatever, the island is hard .
Playing around I tried with the same procedure to make an island in open water applying additionally a LG
but the aircraft sinks , the land is no hard . What do I do wrong here .